\centering
\begin{tabular}[t]{lccc}
\toprule
\multicolumn{1}{c}{ } & \multicolumn{2}{c}{\makecell[c]{Chose worker in private\\outcome round (=1)}} & \multicolumn{1}{c}{\makecell[c]{Chose trans in private\\outcome round (=1)\\(pairs with trans only)}} \\
\cmidrule(l{3pt}r{3pt}){2-3} \cmidrule(l{3pt}r{3pt}){4-4}
  & (1) & (2) & (3)\\
\midrule
Worker is trans $\times$ 3-person discussion & \num{0.159}*** & \num{0.148}*** & \\
 & (\num{0.018}) [\num{<0.001}] & (\num{0.019}) [\num{<0.001}] & \\
3-person discussion & \num{-0.004} & \num{0.003} & \num{0.166}***\\
 & (\num{0.011}) [\num{0.729}] & (\num{0.010}) [\num{0.754}] & (\num{0.020}) [\num{<0.001}]\\
Worker is trans & \num{-0.190}*** &  & \\
 & (\num{0.013}) [\num{<0.001}] &  & \\
\midrule
Num. observations & \num{13494} & \num{13494} & \num{4498}\\
Num. participants & 2249 & 2249 & 2249\\
Num. participants & 751 & 751 & 751\\
Controls &  & X & X\\
Controls interacted with worker is trans &  & X & \\
\bottomrule

\end{tabular}

